The application of light weight insulation materials in metallurgical industry

Sep 07,2017
In general, where there is a high temperature (refractoriness of not less than 1580) and resistance to high temperature physical and chemical effects of the material, we can call it high temperature refractories. In recent years, the rapid development of various emerging technologies are urgently needed high temperature resistant structural materials and functional materials with various excellent properties.
Ultra-lightweight high-temperature refractory material is the leading product of polycrystalline mullite fiber, is a small heat capacity, small bulk density, low thermal conductivity, good heat insulation insulation materials. Broadly speaking, are not fixed refractory insulation materials, which includes high temperature refractory fiber and its composite products two categories. "Nine five" during the national focus on the promotion of new environmentally friendly energy-saving materials.
Refractory material is an important base material for iron and steel, cement, glass, nonferrous metals and other industries. The technological progress of high temperature furnaces has promoted the development of refractory materials in China, and has made a lot of scientific and technological research through national scientific research and industry research projects. Results.
According to the different temperature requirements of the kiln and the different requirements of the working environment, the choice of different types and thickness of ultra-light high-temperature refractory as lining, not only can greatly reduce the thickness of the furnace furnace wall, but also greatly reduce the weight of the furnace, Furnace heating rate. Ultra-lightweight high-temperature refractories are now widely used in the ceramic industry shuttle kiln, tunnel kiln, roller kiln, machinery industry bell kiln, and other thermal equipment as a kiln lining. Such as steel varieties of frequent changes in the rolling mill continuous heating furnace application of ultra-light high-temperature refractory for lining, the integrated energy saving up to 56%; for intermittent electric heating furnace lining, the performance is more significant new Dense refractory bricks, energy saving rate can be as high as 30%, has passed the Ministry of Metallurgical Science and technology achievements identification.
Ultra-light high-temperature refractory material for the furnace filled with sealing material, not only can be used as kiln lining (or the whole furnace bile) used in industrial furnaces, but also can be used as high-temperature furnace filled with sealing and insulation materials, widely used in kilns The furnace wall of the furnace heating element gap and metal parts of the gap between the two ends of the roller kiln rotating part of the hole, the ceiling of the kiln joints, kiln car and joints and the furnace door, Or sealed, especially ultra-light high-temperature refractory material itself has the flexibility and filling, in the 1600 ℃ below the high temperature furnace for expansion joints can ease the expansion of brick wall thermal stress and reduce heat loss.